Bestiary entry from the Clan Primer:
This creature always drops a trophy when it is defeated. This trophy is used in the Hunt Club side quest which involves trading in the trophies for items, armor and accessories.
|Common - (55%)||Coeurl Whisker|
|Uncommon - (10%)||(Nothing)|
|Rare - (3%)||(Nothing)|
* The Grimalkin has a 10% chance of replacing one of the Coeurls located throughout the Uazcuff Hills in the Tchita Uplands each time you enter the zone. It will only appear if you have initiated the Hunt Club side quest.